Human Growth Hormones (HGH) Luteinizing hormone (LH, also known as lutropin and sometimes lutrophin is a hormone produced by gonadotropic cells in the anterior pituitary gland. In females, an acute rise of LH ("LH surge") triggers ovulation and development of the corpus luteum. In males, where LH had also been called interstitial cell–stimulating hormone (ICSH), it stimulates Leydig cell production of testosterone It acts synergistically with follicle-stimulating hormone (FSH). Physical Exercise Exercise &Healthy Life Effects of exercise on physical fitness Exercise is the name given to maintaining physical and mental health and moving limbs regularly for pleasure. Exercise strengthens and restrains the body and mind. As a result strength and endurance increase, heart is refreshed, digestion and immunity are increased. Exercise is to be chosen according to the strength and ability of the body. Moderate exercise is helpful in improving health.